Hair-clipper.



No. 802,070. PATENTED 001. 17', 1905. G. H. GOATES.

- HAIR CLIPPER.

APPLIGATIOR FILED HA3. 2, 1903.

UNITED STATES Parana @IFFICF.

HAIR-CLIPPER.

Specification of Letters Patent.

Patented Oct. 17, 1905.

Application filed March 2, 1903. Serial No. 145,663.

To (ti/Z whom it may concern.-

Be it known that I, GEORGE HENRY CoA'rns, a citizen of the United States, residing at WVorcester, in the county of Vvorcester and Commonwealth of Massachusetts, have invented a new and useful Improvement in Hair-Clippers, of which the following is a specification accompanied by drawings, forming a part of the same, in which Figure 1 represents a top view of a clipper embodying my invention. Fig. 2 isa bottom view with stationary cutting-plate removed; and Figs. 3 and 4 represent, on a larger scale, so much of the bottom'view of the clipper, partly in section, as is necessary to illustrate the construction and application of the handle-actuating spring.

Similar figures of reference refer to similar parts in the different views.

My present invention relates to that class of clippers intended for the use of barbers, comprising stationary and movable cuttingplates and a fixed and a pivoted lever-handle by which the movable cutting-plate is reciprocated. In machines of this class a spring tension is applied to the pivoted handle to hold it normally removed from the fixed handle, and the reciprocation of the movable cutting-plate is effected by the opening and closing of the hand, by which both handles are held, the contraction of the fingers moving the cutting-plate in one direction and against the tension of the spring, the force of the spring reversing the motion of the cutting-plate when the handle is released. As the clipper must be supported and moved along to its work and a rapid reciprocation be given to the movable cutting-plate by a single hand of the operator, a uniform and delicate resilience of the handle-actuating spring with means for its minute adjustment and ready removal and insertion becomes important, and to secure these desirable results is the object of my present invention.

Referring to the drawings, 1 denotes the head of a clipper, 2 the fixed handle integral with the head, and 3 denotes the lever-handle, which is pivoted at a, Fig. 2, within the head 1.

5 denotes the stationary cutting-plate, and i 6 the movable cutting-plate, which is engaged by the lever-handle 3.

The head 1 is provided on one side with a tubular screw-threaded bearing 7, in which is adjustably held a screw-threaded sleeve 8, open at its inner end and closed at. its outer end and provided with a slot 9 for a screw-driver to enable the sleeve to be adjusted in the tubular bearing in order to regulate the tension of the handle actuating spring. Inclosed within the sleeve 8 is a closely-wound spiral spring 10, into one end of which is screwed or otherwise attached a nut 11, provided with a flange 12, overlapping the end of the sleeve and serving to hold the spring from longitudinal movement when its tension is applied to move the lever-handle. The opposite end of the spring 10 is closed in the present instance by a nut 13, screwed into the end of the spring and bearing against the rounded end of a thrust-pin 14. The opposite end of the thrust-pin enters a recess 15 in the side of the lever-handle.

Fig. 3 represents the normal position of the lever-handle and actuating-spring, with the tension of the spring applied to press the lever-handle into its farthest position away from the fixed handle 2, and Fig. 4 represents the position of the same parts when the leverhandle has been brought toward the fixed handle, showing the spring 10 as expanded into the sleeve 8. The hole 16 through the nut 11 is large enough to permit the slight angular movement of the thrust-pin 14 during the rocking motion of the lever-handle, and the pin is provided with a head 17 to prevent its withdrawal from the spring. By extending the pin 14 into the spring and applying the tension of the spring at the end farthest from the lever-handle I increase the length of the pin, and consequently reduce its angular movement, causing the force of the spring to be applied in approximately a direct line in any position of the lever-handle. I also employ a long spring, which is more resilient than a short one, and as its force is always a pushing strain I avoid an attachment of the thrust-pin and handle, thereby enabling the sleeve 8 to be entirely withdrawn from the clipper and the spring replaced when broken. The sleeve is free to be turned for adjustment,

as the different parts are free to turn on each other, the flanged nut 11 on the end of the sleeve, the nut 18 on the end of the thrust-pin,

inner ends of said spring. means for holding said nut from longitudinal movement, a movable handle, a thrust-pin bearing against the side of said handle and passing through a hole in said nut, and means forconnecting the opposite end of said pin with the outer end of said spring, whereby said spring is made to exert a pulling strain against said pin.

, 2. The combination with the lever-handle of a hair-clipper, of a coiled spring having one end held from longitudinal movement, a

' thrust-pin held concentrically in said spring,

one end of said spring being closed and hearing against the end of said pin to exert a pushing strain against the pin, a sleeve inclosing said spring and adjustably held in .said clipper, a flanged nut attached to the opposite end of said spring and bearing against the end of said sleeve, substantially as described.

3. The combination with the lever-handle of a hair-clipper, of a thrust-pin having one end bearing against the side of said handle, a coiled spring concentric Withsaid pin, and having its end farthest from said handle closed and bearing against the opposite end of said pin, a flanged nut attached to the opposite end of said spring and having a hole to receive said pin. a head on said pin to prevent its Withdrawal from said nut and means for holding said nut from movement, substantially as described.

4. The combination With the lever-handle of a hair-clipper, of a thrust-pin having one end bearing against the side of said handle and capable of rotating thereon, a coiled spring inclosing said pin and having its end farthest from the lever-handle bearing against the end of said pin, a sleeve held in the clipper and capable of being Withdrawn therefrom, the inner end of said sleeve and the inner end of said spring being connected, whereby the spring is held from longitudinal movement. substantially as described.

Dated this 26th day of February, 1903.

GEORGE HENRY COATES.

Witnesses:

PENELOPE COMBERBACI-I, RUFUS B. FOWLER. 

